Text and Data Mining valid from 2020-01-08
Received: 17 September 2019
Accepted: 30 December 2019
First Online: 8 January 2020
Ethics approval and consent to participate
: This study received ethical approval from the Institutional Review Board (IRB) of Aksum University College of Health Sciences (Number: IRB 127/2019). All participants were asked to participate in the study voluntarily and gave written informed consent before participation.
: Not applicable.
: The authors declare that they have no competing interests.